chore(deps): update dependency guardian_db to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
guardian_db (source)	prod	major	~> 2.1 -> ~> 3.0

---

Release Notes

ueberauth/guardian_db (guardian_db)

v3.0.0

• Introduced Guardian.DB.Adapter behaviour to allow for custom database adapters to be used with Guardian DB.
  • Add config :guardian, Guardian.DB, adapter: Guardian.DB.EctoAdapter to fall back to the default Ecto adapter.
  • Added Guardian.DB.ETSAdapter.
  • Added Guardian.DB.EctoAdapter.
• Allow migrations mix task with custom table name.
• Make jti and aud required fields, since they are primary keys.

Breaking changes

• Guardian.DB.Token.SweeperServer becomes Guardian.DB.Sweeper
• sweep_interval option is no longer supported. Specify interval directly instead.
• Sweep intervals are now specified in milliseconds instead of minutes.

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.